Answer:
The answer is 22.
Step-by-step explanation:
Just well use a calculator. If you don't have that then use PEMDAS. Hope it helps.
Answer:
the axis of symmetry is x = -1
the vertex is (-1,8)
the y intercept is (0,5) let x=0
because it is symmetrical
x=-2 will also be -5 (-2,5)
Step-by-step explanation:
y = -3x^2 - 6x + 5
to find the axis of symmetry ax^2 +bx+c
h = -b/2a
h = -(-6)/ 2 (-3)
h = 6/-6
h = -1
the axis of symmetry is x = -1
the vertex is (h,k)
to find k substitute h into the equation
k (or y) = -3 (-1)^2 -6(-1) +5
k = -3 *1 +6+5
k = 8
the vertex is (-1,8)
the y intercept is (0,5) let x=0
because it is symmetrical
x=-2 will also be -5 (-2,5)
1. (5x-8)=(8x-17)
5x-8x=-17+8
-3x=-9
x=3
2. (3x+5) + (4x-7) =180
3x+5+4x-7=180
3x+4x=180-5+7
7x=182
x=26
A similar triangle has the same ratio on every side, so that means the perimeter has the same ratio as well.
Set up the proportion: 2/5 = 20/x
multiply the means and extremes to get
2x = 100
divide both sides by 2
x = 50
The perimeter of the larger polygon is 50
Hope this helped =)